/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.split.orgunit;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;

import org.hisp.dhis.feedback.ErrorCode;
import org.hisp.dhis.organisationunit.OrganisationUnit;
import org.hisp.dhis.organisationunit.OrganisationUnitService;
import org.hisp.dhis.test.integration.PostgresIntegrationTestBase;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInstance;
import org.junit.jupiter.api.TestInstance.Lifecycle;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

/**
 * @author Lars Helge Overland
 */
@TestInstance(Lifecycle.PER_CLASS)
@Transactional
class OrgUnitSplitValidatorTest extends PostgresIntegrationTestBase {
  @Autowired private OrganisationUnitService organisationUnitService;

  @Autowired private OrgUnitSplitValidator validator;

  @Test
  void testValidateMissingSource() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .addTarget(ouA)
            .addTarget(ouB)
            .withPrimaryTarget(ouA)
            .build();
    assertEquals(ErrorCode.E1510, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void testValidateMissingTargets() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .withSource(ouB)
            .addTarget(ouA)
            .withPrimaryTarget(ouA)
            .build();
    assertEquals(ErrorCode.E1511, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void testValidateTargetIsSource() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .withSource(ouA)
            .addTarget(ouA)
            .addTarget(ouB)
            .withPrimaryTarget(ouA)
            .build();
    assertEquals(ErrorCode.E1512, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void validateUndefinedPrimaryTarget() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrganisationUnit ouC = createOrganisationUnit('C');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder().withSource(ouA).addTarget(ouB).addTarget(ouC).build();
    assertEquals(ErrorCode.E1513, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void validatePrimaryTargetNotTarget() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrganisationUnit ouC = createOrganisationUnit('C');
    OrganisationUnit ouD = createOrganisationUnit('D');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .withSource(ouA)
            .addTarget(ouB)
            .addTarget(ouC)
            .withPrimaryTarget(ouD)
            .build();
    assertEquals(ErrorCode.E1514, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void validateTargetIsDescendantOfSource() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrganisationUnit ouC = createOrganisationUnit('C', ouA);
    organisationUnitService.addOrganisationUnit(ouA);
    organisationUnitService.addOrganisationUnit(ouB);
    organisationUnitService.addOrganisationUnit(ouC);
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .withSource(ouA)
            .addTarget(ouB)
            .addTarget(ouC)
            .withPrimaryTarget(ouB)
            .build();
    assertEquals(ErrorCode.E1516, validator.validateForErrorMessage(request).getErrorCode());
  }

  @Test
  void validateSuccess() {
    OrganisationUnit ouA = createOrganisationUnit('A');
    OrganisationUnit ouB = createOrganisationUnit('B');
    OrganisationUnit ouC = createOrganisationUnit('C');
    OrgUnitSplitRequest request =
        new OrgUnitSplitRequest.Builder()
            .withSource(ouA)
            .addTarget(ouB)
            .addTarget(ouC)
            .withPrimaryTarget(ouB)
            .build();
    assertNull(validator.validateForErrorMessage(request));
  }
}
